My stay at Jonathan & Benjamin's condo at The River was fantastic. The view was lovely and the gyms and the pools were a treat.
The bed is super comfy, the bathroom is out of this world, and the unit even has a washer/dryer. It's honestly the first place in Bangkok I've stayed where I didn't hear my neighbours, and I didn't hear roosters first thing in the morning.

While I never did Jonathan or Benjamin, Jeomer met me upon arrival and gave me the grand tour of the grounds, and was easily reachable if I needed anything. This is a large and modern residential complex, with some pretty fancy neighbours (The Peninsula Hotel is right next door, and The Shangri-La is directly across the river.) There's also a 24-hour MaxValue supermarket just outside the main gate (try the sushi -- great and cheap!), plus a few restaurants and a coffee shop.

There's even a private boat that takes you to the Saphan Taksin BTS station. The Wi-Fi was fast as well. Overall 10 out of 10 for this rental, and I wouldn't hesitate to rent from these guys again.